Compound Interest Calculator
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$
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years
Investment Growth Projection
$0
Total Contributions
$0
Interest Earned
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Future Value
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Return on Investment
| Year | Start Balance | Contributions | Interest | End Balance |
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About the Compound Interest Calculator
Our Compound Interest Calculator shows you how your investments can grow over time through the power of compounding returns.
Key Features
- Accurate Projections: Calculates future value based on compound interest formulas
- Regular Contributions: Accounts for monthly investments
- Flexible Compounding: Choose from daily to annual compounding
- Visual Growth Chart: See your investment trajectory at a glance
- Detailed Breakdown: View year-by-year growth
Compound Interest Formula
A = P × (1 + r/n)^(n×t) + PMT × (((1 + r/n)^(n×t) - 1) / (r/n)
Where:
A = Future value of investment
P = Principal investment amount
PMT = Monthly contribution amount
r = Annual interest rate (decimal)
n = Number of compounding periods per year
t = Time the money is invested for (in years)
Where:
A = Future value of investment
P = Principal investment amount
PMT = Monthly contribution amount
r = Annual interest rate (decimal)
n = Number of compounding periods per year
t = Time the money is invested for (in years)
The Power of Compound Interest
Compound interest is the addition of interest to the principal sum of a loan or deposit, where the interest that has been added also earns interest. This compounding effect causes wealth to grow exponentially over time.
Who Uses This Tool?
Investors: Project returns on stocks, bonds, or mutual funds.
Retirement Planners: Estimate 401(k) or IRA growth.
Savers: See how regular savings can grow over time.
Students: Learn about compound interest calculations.